[RATIS-1925] Support Zero-Copy in GrpcClientProtocolService

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.1.0
• Component/s: gRPC
• Assignee: Duong
• Reporter: Duong
• Created: 31/Oct/23 05:32
• Updated: 12/Mar/24 20:12
• Resolved: 13/Jan/24 03:01

Description

Apply the marshaller introduced in RATIS-1932 to GrpcClientProtocolService (for the Leader to receive client requests).

Issue Links

• causes: RATIS-2000 Intermittent timeout in TestWatchRequestWithGrpc#testWatchRequestAsyncChangeLeader
• is related to: RATIS-1926 Support Zero-Copy in loading log entries from local files
• is related to: RATIS-1979 Allow StateMachine.read to return a ReferentCountedObject
• relates to: HDDS-9536 Datanode perf: Copying (heap) buffers is costly
• requires: RATIS-1983 Refactor client request processing to support reference count
• links to: GitHub Pull Request #990
• links to: GitHub Pull Request #1007